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Learn how to efficiently rename files in PowerShell by concatenating a version string to a file name. This step-by-step guide simplifies the process for users of all levels.
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This video is based on the question https://stackoverflow.com/q/63126366/ asked by the user 'Debbie.S' ( https://stackoverflow.com/u/13495765/ ) and on the answer https://stackoverflow.com/a/63126527/ provided by the user 'Wasif' ( https://stackoverflow.com/u/12269857/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Concatenate a String to a File Name in PowerShell

Working with files in PowerShell can sometimes be tricky, especially when it comes to renaming or copying files programmatically. One common scenario you might encounter is the need to append a version number to a file name. For example, you may have an executable file called myprogram.exe and you want to rename it to include a version number like myprogram_2.1.1.1.exe.

In this guide, we'll walk through how to accomplish this task neatly and efficiently in PowerShell.

The Problem

Suppose you have a file named myprogram.exe, and you want to rename it by adding a version number to its name. You've tried using the Rename-Item cmdlet, but found that your approach didn't work as expected. Here’s a look at your initial attempt:

[[See Video to Reveal this Text or Code Snippet]]

This code does not successfully concatenate the version number; hence, it led to some confusion.

The Solution

To correctly rename the file by appending a string (in this case, the version number) to the file name, you need to build the new name first. Here’s how you can do it step by step:

Step 1: Define Your Version Number

First, you need to store the version number in a variable. This makes it easy to change in the future if necessary:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Create the New File Name

Next, you can create the new file name using Get-Item to extract parts of your original file name. The Basename property gives you the name without the extension, and the Extension property provides the file type. The new name will combine these elements along with your version string.

Here’s how it looks:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Rename the File

Finally, use the Rename-Item cmdlet to rename your file with the new name generated:

[[See Video to Reveal this Text or Code Snippet]]

Complete Code Example

Putting it all together, your complete PowerShell script will look like this:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following these simple steps, you can easily concatenate a version string to a file name in PowerShell. This method ensures you get the correct file name format and effectively rename your files according to your needs.

Now you can confidently rename files in PowerShell, adding version numbers or any other identifiers as required. Happy scripting!